Cutting
1. Before cutting, adjust the inclination of the strip cutting machine to match the desired length of the slitting scissors.
2. Determine the position of the steel plate to ensure the maximum size of the remaining material so that the remaining material can be used.
3. The length dimension is guaranteed by Kaiping, and the wide bottom dimension requires ≤±2mm. The tolerance of the blanking size of the high pole is taken as the positive tolerance for the large end of each section of pole; generally: 0-2m. Negative tolerance is taken for the small head, and after the -2-0mm size is adjusted, it is completed by a trimming machine and an automatic cutting machine.
4. In terms of equipment: when cutting materials, check the operation of the rolling shear equipment, remove debris on the track, and keep the equipment in good operating condition.
Bend
Bending is the most critical process in the production of light poles. The quality of bending directly affects the quality of light poles and cannot be repaired after bending. Specific attention is as follows:
1. Before bending: first remove the cutting slag of the sheet to ensure that no cutting slag will damage the mold during bending.
2. Check the length, width and straightness of the sheet, if the straightness is ≤1/1000, if the straightness meets the requirements, correct it, especially the polygonal rod must ensure the straightness.
3. Increase the bending depth of the bending machine to determine the position of the sheet metal.
4. Correctly mark the line on the sheet, the error: ≤±1mm. 2.5 Correct alignment and correct bending to minimize the pipe seam, and at the same time, the height and bottom of the two sides are not greater than 5mm.
Welding
When welding, perform straight seam welding on the bent pipe seams. Because the welding is automatic ambush welding, the main reason is that the welder should have more responsibility. During welding, attention should be paid to adjusting the welding position to ensure the straightness of the weld.
Repair And Polish
Repair grinding is to repair the defects of the tube blank after automatic welding. The repair personnel should check one by one, and repair the defective parts. After the repair welding is completed, it will be repaired. The repaired joint is basically the same as the automatic weld.
Plastic Surgery
The shaping process includes the straightening of the light pole, the full circle at both ends of the blank pole and the diagonal size of the polygon. The general tolerance is <±2mm. The error of billet straightness is not more than: ≤±1.5/1000.
All Together
The head-aligning process is to flatten both ends of the bent tube blank to ensure that the tube mouth is perpendicular to the center line, there is no angle and height unevenness, and after flattening, the end surface is polished.
Bottom Plate
The key to spot welding the bottom flange and rib is to ensure that the bottom flange is perpendicular to the center line of the lamp, the rib is perpendicular to the bottom flange, and is parallel to the straight busbar of the lamp.
Weld Bottom Flange
The welding requirements refer to the welding process of the national standard to ensure the welding quality. The welding seam should be beautiful, without pores and slag inclusions.
Open The Door
During the working process of this process, you must be bold and careful (1) First, you must see the drawing to determine the direction of the door, and then position it according to the size of the drawing. The size includes: up and down, left and right, and the size of the door frame. When plasma cutting, be careful to ensure that the cutting seam is in a straight line.
Welding Door Strip
When welding the door strip, the 20mm wide door strip should be put down at the position of 8-10mm, especially when spot welding, the door strip should be close to the light pole, and the welding should be firm. Welding electrical strips and lock seats are mainly determined according to the drawings. The lock seats are welded in the middle of the door with an error of ≤±2mm. Keep the top level and cannot exceed the light pole.
Curved Fork
The process of bending the fork has the same nature as opening the door, so it should be bold and careful. Firstly, pay attention to the direction of the door, secondly, the starting point of the bend, and thirdly, the angle of the light fork.
Galvanized
The quality of galvanizing directly affects the quality of light poles. Galvanizing requires galvanizing according to national standards. After galvanizing, the surface is smooth and has no color difference.
Plastic Spray
The purpose of plastic spraying is one for aesthetics and the other for anti-corrosion
1. Grinding: Grind the surface of the galvanized pole with a polishing wheel to ensure that the surface of the pole is smooth and flat.
2. Straightening: straighten the polished light pole and shape the shape of the mouth. The straightness of the light pole must reach 1/1000, and the diameter requirements: small pole ≤ ± 1mm; high pole ≤ ± 2mm.
Door Panel
1. Treat all door panels after galvanizing, including hanging zinc, leaking zinc and depositing zinc in the keyhole.
2. When drilling screw holes, the electric drill must be perpendicular to the door panel, the gap around the door panel should be equal, and the door panel should be flat.
3. After the screws are fixed, the door panel cannot be loose, and the GULI must be firm to prevent it from falling off during transportation.
4. Plastic spraying powder: Put the light pole with the door installed into the spray room, spray the plastic powder color according to the requirements of the production plan, and then enter the drying room. The temperature and holding time of the drying room must strictly follow the requirements of each plastic powder to ensure that the plastic powder Powder adhesion and smoothness and other quality requirements.
Factory Inspection
The quality inspector of the factory will carry out the factory inspection. The factory inspector must inspect the items of the lamp pole inspection item by item. The inspector must record and file at the same time. The quality inspector can only deliver after signing.
